big_wasa
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| posted on 16/8/10 at 08:53 PM |
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Does Titanium conduct electricity ?
Having had a little acident I am in the market for a new watch.
I brushed past the battery with multimeter in my hand to measure a voltage. I wasnt really working on the car, just poped out to check somthing.
It arked and welded my watch to the battery tray and wouldnt let go.
The stainless strap glowed orange untill the pins in the strap melted and I was able to get it of. It dumped its full charge through my watch.
After getting back from A&E I have full thickness burns the size of a golf ball. And lesser burns to the size of a tennis ball on my inner wrist
I am told I will have at least a month to save up for a new watch before I can ware one again.
And no I hadnt got around to puting a rubber cap over the live terminal.
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MikeR
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| posted on 16/8/10 at 08:59 PM |
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ouch and double ouch, can i suggest a 10 pound plastic strapped casio next time.
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hobbsy
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| posted on 16/8/10 at 09:02 PM |
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Yes Ti conducts
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Stott
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| posted on 16/8/10 at 09:07 PM |
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So do stainless watches, when you get your hand jammed between the alt b+ and the inlet manifold of a 205gti engine
ask me how I know..........
That got me one glowing hot watch, that I flung about so hard it came off my wrist and smashed to bits, leaving my wrist with a watch shaped
cauterized wound, lol
I don't wear watches while working on cars now
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mark chandler
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| posted on 16/8/10 at 09:39 PM |
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I used to work in a strowger exchange, it does not take long before all jewellery is removed!
They showed us pictures of people’s fingers after wedding rings had arched out on the 50v power rails.
No digits left as flesh was vaporised leaving just bone.
be careful out there....
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mangogrooveworkshop
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| posted on 16/8/10 at 09:46 PM |
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quote:
Originally posted by mark chandler
I used to work in a strowger exchange, it does not take long before all jewellery is removed!
They showed us pictures of people’s fingers after wedding rings had arched out on the 50v power rails.
No digits left as flesh was vaporised leaving just bone.
be careful out there....
Telco .......still runs on 53 volts ..even the Telabs and Nokia modern kit.
I work with this every day and I dont ever wear any metal on my hands.....
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NigeEss
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| posted on 16/8/10 at 09:54 PM |
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Does Titanium conduct electricity ?
I think you may in a painful way have answered your own question !
Burns are my most hated injury, wishing you a speedy recovery.
Time is an illusion. Lunchtime doubly so.................Douglas Adams.
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mcerd1
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| posted on 16/8/10 at 10:26 PM |
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ouch 
quote:
Originally posted by mark chandler
I used to work in a strowger exchange, it does not take long before all jewellery is removed!
They showed us pictures of people’s fingers after wedding rings had arched out on the 50v power rails.
No digits left as flesh was vaporised leaving just bone.
be careful out there....
it doesn't have to be powered, a ring/watch caught/squashed in the wrong place can get very messy too
[Edited on 16/8/2010 by mcerd1]
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splitrivet
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| posted on 16/8/10 at 10:44 PM |
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Lost count of how many PCB's Ive nacked with the ID bracelet I used to wear.
Cheers,
Bob
I used to be a Werewolf but I'm alright nowwoooooooooooooo
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Liam
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| posted on 17/8/10 at 12:06 AM |
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OUCH OUCH OUCH!! Hope you recover well. For next time - conducting electricity is part of the definition of a metal, so they all do. Beware!
Remind me not to have a metal battery tray strap within watch-size distance of a positive battery terminal
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dhutch
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| posted on 17/8/10 at 12:29 AM |
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Ouch indeed!!
I use my phone to tell the time. Even thats got an ali back on it but its not round my wrist!
Daniel
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Staple balls
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| posted on 17/8/10 at 12:45 AM |
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These are the way forwards if you're a watch wearer, won't save
you from moments of stupid, but won't conduct, and won't break.
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hobbsy
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| posted on 17/8/10 at 01:33 AM |
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Telco kit is 48V IIRC - as if a small place they can use 4x12V batteries as backup - I may be talking out of my backside however...
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Benonymous
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| posted on 17/8/10 at 03:56 AM |
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Yes, terrestrial copper telephone systems have between 48 and 50 volts DC on them.
On a slightly related note, my teacher at technical college was once employed by a forklift truck company and he was working on an electric forklift.
The battery cover was off and the terminals exposed. We're talking batteries that can supply hundreds of amps here. He was doing some sort of
repair on the thing and fumbled his screwdriver which dropped into the battery tray. The screwdriver vapourised in a flash of white and a mighty
"BANG!". It scared the poo out of him but fortunately he only got hit with a few small spatters of molten screwdriver.
Phew!
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MakeEverything
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| posted on 17/8/10 at 07:13 AM |
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I dont wear watches or rings any more. Started to wear a wedding ring, and used to wear watches all the time but i work with electricity and heavy
machinery so the last thing i need is to be conducting anything anywhere, or getting my fingers crushed inside the ring.
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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David Jenkins
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| posted on 17/8/10 at 08:08 AM |
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When I first started in BT (was PO Telephones then!) the main telephone exchange had a display board with a great big spanner as the centrepiece...
3/4" one end, 1" the other... with the middle 12" missing. Someone had dropped it across the main supply busbar, which was capable
of carrying many hundreds of amps. These busbars are made of 8 or 10 copper bars, 12" x 1", all bolted together. The spanner vaporised
before the supply fuse went.
That, plus all the fried screwdrivers, plus the gruesome safety films, was a great incentive to remove all rings & watches before mucking around
on the equipment racks.
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Macbeast
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| posted on 17/8/10 at 08:28 AM |
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The BBC engineering training department used to have a picture of a ring finger, complete with ring and a trailing ligament. Looked like a Tampax with
a fingernail.
I'm addicted to brake fluid, but I can stop anytime.
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speedyxjs
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| posted on 17/8/10 at 09:03 AM |
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I had a freind arc his watch on a saxo alternator. Very painfull!
I also use my phone to tell the time. Much less risk.
How long can i resist the temptation to drop a V8 in?
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02GF74
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| posted on 17/8/10 at 10:11 AM |
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quote:
Originally posted by David Jenkins
When I first started in BT (was PO Telephones then!)
gosh, you must have worked alongside Graham Alexander Bell!! 
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morcus
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| posted on 18/8/10 at 12:50 AM |
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The safety Seminar for the Engineering department at uni was all stuff like that. The bloke in charge said you weren't really an engineer till
you'd lost something like a finger or a toe, and most of there stories were removal by mechanical means. He'd had two of his fingers sawn
off and reattached but he had many stories of rings catching.
I don't do much that actually poses these kind of risk at the moment (Only because I don't have the space mind) but I always think its
best to have a wall clock and have no jewelery and nothing in you pockets. put it all in your coat and hang it up as far from the work area as
possible.
In a White Room, With Black Curtains, By the Station.
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Stuart_B
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| posted on 18/8/10 at 05:51 PM |
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wow, that is bad, never thought about it,
i all ways wearing my watch, working on cars and as electrician.
my first view was i got a nice watch i will get my moneys worth.
now, maybe not so much
stu
black mk indy, 1.6pinto on cbr600 bike carb's.
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Vindi_andy
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| posted on 19/8/10 at 08:23 AM |
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I used to wear a watch but when working on washing machines i used to have to put my hands inside the machine and theres not a lot of room
After having to take my watch of a 3rd time because it had got stuck I stopped wearing one and that was 15 years ago
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big_wasa
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| posted on 22/8/10 at 01:30 PM |
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Just been back to have it re-dressed and it looks a right mess.
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